Insulated platform.



G. L. BROOKS.

INSULATED PLATFORM.

APPLIOATION IILBD JULY 11, mo.

1,026,380. Patented May 14, 1912.

GEORGE L. BROOKS, OF SEATTLE, WASHINGTON.

INSULATED PLATFORM.

Specification of Letters Patent.

Patented May 14, 1912.

Application filed July 11, 1910. Serial No. 571,500.

To all whom it may concern Be it known that I, GEORGE L. Buoons, a citizen of the United States, residing in the city of Seattle, in the county of King and State of WVashington, have invented a new and useful Insulated Platform, of which the following is a clear and concise specification.

'My invention relates to an insulated platform for linemen and others who are called upon to work on high tension wires and more in particular to a bracket secured to the pole whereby the operator is protected against grounding the current through his body.

The objects of my invention are to provide a platform swingingly secured to the pole supporting high tension or high voltage wires; to provide a platform which is doubly insulated and a means for securing the same to the pole supporting high tension wires; to provide a swingingly mounted platform insulated from the pole to which it is secured and which supports high tension electric conductors.

I accomplish these as well as minor objects by the construction hereinafter fully set forth and illustrated in the accompanying drawings in which- Figure 1 is an elevation of the preferred form of my device; Fig. 2 is a plan View of my device; Fig. 3 is a detail view of one of the joints of my device; Fig. 4 is a detail view of the jack for wire raising; Fig. 5 is an elevation of a modification of my device; Fig. 6 is a plan view of Fig. 5; Figs. 7, 8 are elevations of a modification of my device; and Fig. 9 is a plan view of Fig. 8.

Similar reference numerals refer to similar parts in the accompanying drawings and in the following specification. I

I have provided a frame work 1 having the upwardly projecting hooked extensions 2 and 3 which hook over the cross arms 4 which is adapted to support the wires 5 and 6 by means of the high tension insulators 7 and 8. The lower end of said frame work 1 is provided with an aperture 9 adapted to receive the spike 10 firmly holding said 50] frame work 1 in position relative to the pole 10. On said frame work 1 is provided a top lug 11 and bottom lug 12 which support the bracket 13 by means of the pintle 14 which passes through said lugs 11 and 12 and also through the sleeve 15 of said bracket 13. Said sleeve 15 is preferably provided with the extensions 16 and 17 adapted to receive the members 18 and 19 which are preferably constructed of insulated material and are adapted to support at their free ends, bearings 20 and 21 which are apertured to receive the pintle 22 which engages the insulated sleeve 23 which is made of material capable of insulating high voltages and is provided with the grooves 24 which receive the clamps 25 and 26 which are adapted to receive the arms 27 and 28. which are constructed of insulated material of considerable strength. The arms 27 and 28 as well as the insulated sleeve 23 thus form a second joint to the bracket 13. The third joint is formed by a small insulated sleeve 29 which receives the pintle 30 which engages said sleeve as well as the bearings 31 and 32. The clamps 33 and 34 secure the supporting piece 35 and brace 36 to said sleeve 29. Said supporting piece 35 is preferably secured to a rectangular frame work 37 which receives the insulators 38 which are secured to the platform 39 which is preferably used to support the tools used by the operator which include a wire lifting jack 40 which is secured to said platform 39 by the threaded extension 41 and nut 42. Said jack 40 may be of any suitable construction and is preferably provided with a head 43 having a groove 44 therein to receive the wire. The operator stands or sits on the platform 45 which is supported on the insulators 40 which are secured to said platform 45 and also to the platform 39 thus the operator is doubly insulated from the ground by said insulators 38 and 46 as well as the several insulated joints of the bracket 13.

In Figs. 5 and 6 I have shown a modification of my device in which the platforms 45 and 39 are secured to a swingingly mounted bracket 13 and secured to the pole 47 by the frame work 1.

In Figs. 8 and 9 I have shown the insulated platforms 45 and 39 supported by the bracket 13" which hooks over the cross arm 4" and under a second cross arm 48.

In Fig. 7 I have shown the bracket 13 and resting on the cross arm 4" and under the cross arm 48.

I do not wish to be limited to the specific details herein set forth and illustrated in the accompanying drawings, but wish to depart therefrom within the scope of the appended claims.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In an insulated platform, a pole, a cross arm secured to said pole, a frame work secured to said cross arm and to said pole, a bracket secured to said framework and insulated therefrom, a pair of platforms work secured thereto adapted to support said bracket, and insulated supports secur- 15 ing said platform to said bracket whereby said platform may be insulated from said ole.

p In testimony whereof I have signed my name to this specification in the presence of 20 two subscribing witnesses.

GEORGE L. BROOKS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

' Washington, D. 0. 

